Search
Ask a question
0 0

Applications of system of equation

(1)An oil painting is in the shape of a rectangle.The perimeter of the painting is 127.4 inches, and the lenght of the painting is 1.6 times the width of the painting.Find the dimensions of the painting.

(2)Maria invested $5500 in two mutual funds.One fund earned an 8% profit,while the other earned a 1.5% profit.Between the two accounts,Maria made a profit of $180. How much was invested in each account?

(3) Raheem can buy peanuts for $0.40 per pound and cashews for $1.05 per pound.How many pounds of each type should he buy to produce 120 pounds of a mixture that costs him $0.66 per pound?
Tutors, please sign in to answer this question.

1 Answer

1) Perimeter = 127.4         Lenght = 1.6W
    Perimeter= 2L + 2W
    127.4 = 2(1.6W) + 2W
   127.4 = 3.2W + 2W
   127.4 = 5.2 W
    24.5 = Width
    1.6 * 24.5 = Length
    39.2 = L